pulmonary vein

例句：

1. 1.The lungs are responsible for the transportation of oxygen to the rest of the body.
   肺部负责将氧气输送到身体其他部位。
2. 2.The doctor performed a surgery on the patient's lungs.
   医生对患者的肺部进行了手术。
3. 3.The patient was admitted to the hospital with a chest infection.
   患者因胸部感染被送进医院。